feat: in-app support form with email + Gitea issue integration (v0.49.0)

Users can now report bugs, suggestions, or questions from a new /support
page. Each submission sends a confirmation email and, when GITEA_URL/
GITEA_TOKEN/GITEA_REPO are configured in admin Settings, opens a labeled
issue on that repo automatically (best-effort — failure doesn't block the
ticket). Admins get a Support section to triage status and retry failed
Gitea issue creation.

New support_tickets table, gitea.ts client, site-settings entries for the
three new secrets, and OpenAPI docs for the two user-facing endpoints.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/app/admin/support/page.tsx

@@ -0,0 +1,38 @@
+import type { Metadata } from "next";
+import { db, users, supportTickets, eq, desc } from "@epicure/db";
+import { AdminSupportManager } from "@/components/admin/admin-support-manager";
+
+export const metadata: Metadata = {};
+
+export default async function AdminSupportPage() {
+  const rows = await db
+    .select({
+      id: supportTickets.id,
+      userEmail: users.email,
+      username: users.username,
+      type: supportTickets.type,
+      title: supportTickets.title,
+      description: supportTickets.description,
+      status: supportTickets.status,
+      giteaIssueUrl: supportTickets.giteaIssueUrl,
+      giteaError: supportTickets.giteaError,
+      createdAt: supportTickets.createdAt,
+    })
+    .from(supportTickets)
+    .innerJoin(users, eq(supportTickets.userId, users.id))
+    .orderBy(desc(supportTickets.createdAt));
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h1 className="text-2xl font-bold tracking-tight">Support Tickets</h1>
+        <p className="text-muted-foreground text-sm mt-1">
+          Bug reports, suggestions, and questions submitted through the app.
+        </p>
+      </div>
+      <AdminSupportManager
+        initialTickets={rows.map((r) => ({ ...r, createdAt: r.createdAt.toISOString() }))}
+      />
+    </div>
+  );
+}